Coin-controlled microscope



2 Sheets-Sheet 1.

A. W. s A. H. BOWERS. GOIN GONTRLLBD MIGROSOPE.

No. 439,189. Patented oct. 28, 1.8.90.

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9. oo 1|.- M 9 a e 3 a. w 4 w Y M m O m N m5# @WW UNITED STATES PATENT OFFICE.

ALFRED lV. ROOVERS AND ALEXANDER H. ROOVERS, OF BROOKLYN,

' NEW YORK.

COIN-CONTROLLED MICROSCOPE.

SPECIFICATION forming part of Letters Patent No. 439,189, dated October 28., 1890.

Application Bled December 3, 1889. Serial No. 332,416. (No model.)

T0 all whom it may con/cern.:

Be it known that we,ALnRED W. Roovnns and ALEXANDER H. RoovERs, of Brooklyn, Kings county, and State of New York, have conjointly invented a certain new and useful Improvement in Coin-Controlled Microscopes, of which the following is a specification.

In the accompanying drawings, Figure l is a sectional side elevation of a machine enibodying our improvement. Fig. 2 is a horizontal section of the same, taken at the plane of the dotted line a; w, Fig. l. Fig. 3 is a side elevation of certain parts. Fig. 4 is a sectional side elevation of a machine of modified construction. Fig. 5 is a horizontal section taken at the plane of the dotted line y y, Fig. 4. Fig. 6 is a horizontal section taken at the plane of the objective of the microscope shown in Fig. 4, but illustrating only certain parts.

Similar letters of reference designate cor,- responding parts in all the figures.

. Referring rst to Figs. l, 2, and 3, A designates' a box or case, which may be made of any suitable construction.

B designates a microscope arranged above the same and as here shown extending into it. Preferably the box or case will be provided with a turret A' around the microscope. The microscope may be of ordinary construction, having telescopic parts whereby it is rendered adjustable. One of these telescopic parts may be made adjustable.

C designates an object-support, which is here shown as made in the form of a circular plate or disk, and is intended to be made of glass or partly of glass and partly of other material. This support is intended to rotate, and in order that it may have a rotary movement it is secured to an upright shaft C', supported by arms O2. These arms C2 are fitted to a stud C3, which is secured between two plates of a frame C4. The arms C2 are combined with the stud C3, so that they may be swung in the directions indicated by the double-headed arrows, Fig. 2. The rotary motion is derived from a train of wheels D, mounted upon shafts supported in the frame C4, secured in the case A. A wheel CZ of this train engages with a pinion c, which is affixed to the shaft C', thus imparting the desired and derives motion from the pinion c of the shaft C'. The shaft of the iiier is supported in brackets c4, that are secured to one of the arms O2.

The swinging motion of the obj ect-support is producedby means of a stationary pin C5 engaging with a grooved plate cwhich is aiiixed to the shaft C. The pin O5, as here shown, is secured to one of the plates of the frame. The groove of the plate c5 is concen1 tric with the shaft C throughout the greater part of its length, but at one point it extends olii in aY radial direction. WVhen this radiallyextending part is by the rotation of the object-support and its shaft C brought into contact with the pin t C5, the object-support will be swung aside, and then the objects mounted upon it will be out of the range of the microscope. It is intended that this should happen just as the train of wheels D ceases to operate, and the plate c5 is arranged with the radially-extending portionV of its groove suitably disposed to accomplish this result.

The train of wheels D may be driven bya spring D', which will have to be wound up periodically. The arbor or shaft to which standard G2, which may be secured to the bottom of the case A. The second arm of the lever G is provided with a weight G3, which is intended to adjust the lever into a horizontal position after its end which is provided with the standard, and the receptacle has been depressed and to hold it in a horizontal position except when a coin of the IOO proper denomination is dropped into the coin-Y recept-acle. This weight G3 may be adjustable if desired. There is attached to the bracket c4, which aids in supporting the iiier F, an arm or wire 010, which extends vertically upward and then horizontally over that arm of the lever G which is provided with the weight G3. The lever G is so disposed with reference to the ier that when the lever is in its normal position it extends over the blade of the flier and blocks it, preventing any rotation. Whenever a coin of the proper denomination is dropped into the coin-receptacle and oscillates the lever G', the arm of the latter which is provided with the weight G3 will be raised, and after being raised a short distance will move beyond the blade of the flier. The continued movement of the lever brings it into Contact with the horizontally-extending portion of the arm or wire 010, and by the latter it is precluded from swinging farther until the swinging movement of the shaft C and object-support shall have carried the wire or arm c10 into such a position that it can no longer hold the lever. When this happens, the end of the lever which is provided with the coin-receptacle drops downward much farther and discharges the coin.

Whenever a coin of the proper denomination is dropped into the machine, the train of wheels will be released and the object-support will begin to move. As it begins to move it will swing into such position that its rotary motion will bring the objects mounted upon it beneath the microscope. During this rotary movement the objects will be exhibited. This having been done, the object-support will be moved out from under the microscope.

We will now describe the example of the improvement illustrated by Figs. 4, 5, and 6.

The case A may be of the same construction as that already described and may have a turret A for a microscope B. Any suitable adjustment for the latter may be provided. The objective b of the microscope is in this example of the improvement mounted upon a lever b', having a fulcrum h2, allowing it to swing horizontally, so as to adjust its axis into line with the axis of the body of the microscope or out of line therewith to render the microscope useless.

C designates the object-support. Itis supported by the plates C4 of the train of wheels D and has merely an intermittent rotary movement. The train of wheels D is shown as driven by a spring, as in the other example of the improvement. In the train a wormwheel d5 engages with a worm or spiral d affixed to the shaft of the flier or fan F, the latter being journaled in bearings supported by one of the plates C and serving to prevent a too rapid movement of the train of wheels.

The shaft C, to which the object-support C is secured, has aiiixed to it a wheel cl2, which is shown as having pointed teeth or star-teeth. The shaft di of the train of wheels D has afxed to it an arm d8, which once in each rotation of the shaft engages with a tooth of the wheel 012 and thus interlnittently rotates the object-support. The wheel 012 should have as many teeth as there are objects upon the object-plate. Each time that it is shifted by the arm (Z8 it will be rotated so as to present a new object under the microscope, the objects being spaced and disposed to correspond with the teeth of the star-wheel cl2. There may be combined with the star-wheel cl2 a detent cl3, to prevent it from moving improperly. The shaft d10 of the train of wheels D is prolonged considerably above the upper plate C4, and' has affixed to its upper end, in the horizontal plane of the lever b', an arm du. Every time the shaft d10 rotates it will oscillate the lever b in one direction, so that the latter will carry the microscope-objective b out of line with the body of the microscope. The shaft d10 makes one rotation for each rotation of the shaft C. Hence after all the objects shall have been exposed by a complete rotation of the object-support the arm d will shift the microscope-objective into a position which will preclude further use of the microscope. The train of wheels is intended to stop in such a position that the arm d will hold the microscope-objective out of line with the microscope. The shaft d10 rotates in the direction indicated by the arrows e in Figs. 5 and 6, and, as there is on that arm of the lever h which is acted upon by the arm d a hook C112, the lever prevents the movement of the armd11 more than one revolution at a time. To enable the lever h to release the arm du, the arm of said lever which acts in connection with the arm d is provided with an end section 1`. The end is of the kind which is commonly known as an elbow-joint, and the pin 2 extends horizontally. The hook d is arranged upon this section 1 and is so beveled or inclined that the arm d raises it, swinging the part 1 on the pin 2. The outer end of the section 1 is weighted, as shown at 3, to cause it to descend as far as the elbowjoint will allow it to descend, which will be into the horizontal plane of the arm du. The section 1 will preferably be made resilient, with a tendency to spring in the direction indicated by the arrow W, Fig. 6, so that if this section were vibrated upwardly, with the arm du in the position which it occupies in Figs. 5 and 6, it would on descending fall 011 the top of the outer portion of the arm du. The object of this is to prevent the section 1 from IIO re-engaging the arm CZ before the latter croscope-objective into line with the bottom of the microscope. The stop smay be a pin upon any fixed portion of the case.

It will be clear from the foregoing description that when a coin of the proper denomina.- tion is dropped into the coin-receptacle the objective of the microscope will be moved into line with the body of the microscope and the-objects will be successively brought lbeneath the microscope.

It will be seen that by both examples of our present invention we provide for making the use of a microscope dependent upon the dropping of a coin of a predetermined denomination intoa machine comprising the microscope. In one example of our improvement We move the microscope,because in effect we move the instrument when we move its objective, and in the other example of ourimprovement We move the object-support, so that there will be no exposure ofany of the objects. It is not essential to the plan of the latter example of the improvement that the object-support should have a bodily movement, for evidently if it were rotated in the manner described without having any bodily movement and one of a number of points divided olf, so as to be brought successively beneath the microscope, should be left blank there would still be an object-support, which would be moved so as` to render the microscope useless.

In ourpresent improvement the obj ects may be illuminated in any suitable manner, either by a source of light outside or inside the case A.

What we claim as our invention, and desire to secure by Letters Patent, is-

l. The combination of a microscope, an object-support, mechanism whereby a relative movement between the microscope and the object-support may be made for thepurpose of rendering the microscope incapable of use, and a coin-receptacle controlling said mechanism, substantially as specified.

2. The combination of a microscope, an object-support movable bodily out of the range of the microscope, mechanism for moving the object-support in the manner described, and a coin-receptacle controlling the said mechanism, substantially as specified.

3. The combination of a microscope, an object-support, a rotary shaft upon which the object-support is mounted, swinging arms for sustaining this shaft, a grooved part affixed to said shaft, and a stationary pin engaging with the groove, said groove having a radiallyextending portion, whereby When the objectsupport is rotated it will on completing its rotation be swung aside, substantially as specified.

4. The combination of a microscope, an object-support sustained by swinging arms, a coin-receptacle, a lever. having the coin-receptacle affixed to it, a fan or flier, and an arm moving with the object-support as the latter swings to and fro, substantially as specified.

Witnesses:

S. O. EDMoNDs, C. R. FERGUSON. 

